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10202300021 = 192918515971
BaseRepresentation
bin10011000000001101…
…01011111001110101
3222100000102112120202
421200012223321311
5131343242100041
64404210410245
7510552055634
oct114006537165
928300375522
1010202300021
114365a29011
121b88890985
13c6789b624
146cad8351b
153eaa1da9b
hex2601abe75

10202300021 has 8 divisors (see below), whose sum is σ = 11109583200. Its totient is φ = 9332048880.

The previous prime is 10202299999. The next prime is 10202300113. The reversal of 10202300021 is 12000320201.

It is a happy number.

10202300021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10202300021 is a prime.

It is a super-3 number, since 3×102023000213 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202299975 and 10202300011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202300221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9257435 + ... + 9258536.

It is an arithmetic number, because the mean of its divisors is an integer number (1388697900).

Almost surely, 210202300021 is an apocalyptic number.

It is an amenable number.

10202300021 is a deficient number, since it is larger than the sum of its proper divisors (907283179).

10202300021 is a wasteful number, since it uses less digits than its factorization.

10202300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18516019.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 10202300021 its reverse (12000320201), we get a palindrome (22202620222).

The spelling of 10202300021 in words is "ten billion, two hundred two million, three hundred thousand, twenty-one".

Divisors: 1 19 29 551 18515971 351803449 536963159 10202300021